On the x axis as small vertical lines locatorn typen

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Unformatted text preview: intercept a abline(h=y) draws a horizontal line at ordinate y abline(v=x) draws a vertical line at abcissa x abline(lm.obj) draws the regression line given by lm.obj rect(x1, y1, x2, y2) draws a rectangle which left, right, bottom, and top limits are x1, x2, y1, and y2, respectively polygon(x, y) draws a polygon linking the points with coordinates given by x and y legend(x, y, legend) adds the legend at the point (x,y) with the symbols given by legend title() adds a title and optionally a sub-title axis(side, vect) adds an axis at the bottom (side=1), on the left (2), at the top (3), or on the right (4); vect (optional) gives the abcissa (or ordinates) where tick-marks are drawn rug(x) draws the data x on the x-axis as small vertical lines locator(n, type="n", ...) returns the coordinates (x, y) after the user has clicked n times on the plot with the mouse; also draws symbols (type="p") or lines (type="l") with respect to optional graphic parameters (...); by default nothing is drawn (type="n") Graphical parameters These can be set globally with par(...); many can be passed as parameters to plotting commands. adj controls text justification (0 left-justified, 0.5 centred, 1 right-justified) bg specifies the colour of the background (ex. : bg="red", bg="blue", . . . the list of the 657 available colours is displayed with colors()) bty controls the type of box drawn around the plot, allowed values are: "o", "l", "7", "c", "u" ou "]" (the box looks like the corresponding character); if bty="n" the box is not drawn cex a value controlling the size of texts and symbols with respect to the default; the following parameters have the same control for numbers on the axes, cex.axis, the axis labels, cex.lab, the title, cex.main, and the sub-title, cex.sub col controls the color of symbols and lines; use color names: "red", "blue" see colors() or as "#RRGGBB"; see rgb(), hsv(), gray(), and rainbow(); as for cex there are: col.axis, col.lab, col.main, col.sub font an integer which controls the style of text (1: normal, 2: italics, 3: bold, 4: bold italics); as for cex there are: font.axis, font.lab, font.main, font.sub las an integer which controls the orientation of the axis labels (0: parallel to the axes, 1: horizontal, 2: perpendicular to the axes, 3: vertical) lty controls the type of lines, can be an integer or string (1: "solid", 2: "dashed", 3: "dotted", 4: "dotdash", 5: "longdash", 6: "twodash", or a string of up to eight characters (between "0" and "9") which specifies alternatively the length, in points or pixels, of the drawn elements and the blanks, for example lty="44" will have the same effect than lty=2 lwd a numeric which controls the width of lines, default 1 mar a vector of 4 numeric values which control...
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